M A T H H E L P !!!

All righty idk where to put this thread so i decided to put it here.

So my math teacher tells us to

-Use four 4s and come up with ways to end up with numbers 0-5

Ex. (4+4)-4)-4=0 4/4+4/4=1

(Get the picture)

So ive done 0 1 2 3 4 5 6 8 11 16

i need 7 9 10 12 13 14 15 16 17 18 19 20

Ive spent over 2 hours on this and i got no clue..and its gettin late so can somebody(ies) help me

You can use any method possible like 4^4 or |4| or -4. oh and numbers like 44 count as 2 4s and 4444 would count as four 4s.
-thanks

 

try google

 

i would but idk what to type in google to find what i need.

 

brainhurt

 

Banned for Self Vouching

 

Op or X?

 

Op was banned for self vouching

 

Try Jimmy.
He's good with maths.